It was imperfectly odd. It was strangely unsettling. It was uniquely American. On a balmy early Saturday summer evening, the U.S soccer team played for a prestigious championship in a U.S. stadium … and was smothered in boos. Its fans were vastly outnumbered. Its goalkeeper was bathed in a chanted obscenity. Even its national anthem was filled with the blowing of air horns and bouncing of beach balls. Most of these hostile visitors didn't live in another country. Most, in fact, were not visitors at all, many of them being U.S. residents whose lives are here but whose sporting souls...